The governor valve is stuck.

Clean or replace the governor screen and/or the governor.

The modulation is delayed.

Adjust the modulator. Refer to Transmission Modulator Cable Adjustment .

The mechanical actuator cable is kinked, broken, or not properly adjusted.

Replace, adjust, or repair the cable.

The mechanical actuator is obstructed.

Replace the actuator.

The shift signal valve adjustment is too high.

Adjust the shift points.

The valves are sticking.

Replace or rebuild the control valve assembly.

The modulation is improper.

Inspect the modulator valve and the modulator body.